<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图区域-->
    <el-card>
      <el-alert title="添加商品信息" type="info" show-icon :closable="false">
      </el-alert>
      <el-steps
        :space="200"
        :active="activeIndex - 0"
        finish-status="success"
        align-center
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-position="top"
        label-width="100px"
      >
        <el-tabs
          v-model="activeIndex"
          :tab-position="'left'"
          :before-leave="beforeTabLeave"
          @tab-click="tabClicked"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品中重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>

            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                v-model="addForm.goods_cat"
                :options="cateList"
                :props="cateProps"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item
              :label="item.attr_name"
              v-for="item in manyTableData"
              :key="item.attr_id"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  border
                  :label="cb"
                  v-for="(cb, i) in item.attr_vals"
                  :key="i"
                ></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              :label="item.attr_name"
              v-for="item in onlyTableData"
              :key="item.attr_id"
            >
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <!--action:图片上传地址 
                on-preview：预览效果
                on-remove：删除
                list-type:显示效果
            -->
            <el-upload
              :action="uploadUrl"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
              :headers="headerObj"
              :on-success="uploadSuccess"
            >
              <el-button size="small" type="primary">点击上传</el-button>
              <div slot="tip" class="el-upload__tip">
                只能上传jpg/png文件，且不超过500kb
              </div>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <quill-editor
              v-model="addForm.goods_introduce"
             
            ></quill-editor>
            <el-button type="primary" @click="addGoods"  class="btnAdd">添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>

    <el-dialog title="图片预览" :visible.sync="previewVisible" width="50%">
      <img :src="preViewPath" class="preView" />
    </el-dialog>
  </div>
</template>
<script>

export default {
    
  data() {
    return {
      activeIndex: 0,
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics: [],
        goods_introduce: '',
        attrs:[]
      },
      addFormRules: {
        goods_name: [
          {
            required: true,
            message: '请输入商品名称',
            trigger: 'blur'
          }
        ],
        goods_price: [
          {
            required: true,
            message: '请输入商品价格',
            trigger: 'blur'
          }
        ],
        goods_weight: [
          {
            required: true,
            message: '请输入商品重量',
            trigger: 'blur'
          }
        ],
        goods_number: [
          {
            required: true,
            message: '请输入商品数量',
            trigger: 'blur'
          }
        ],
        goods_cat: [
          {
            required: true,
            message: '请选择商品分类',
            trigger: 'blur'
          }
        ]
      },
      cateList: [],
      cateProps: {
        label: 'cat_name',
        value: 'cat_id',
        children: 'children',
        expandTrigger: 'hover',
        checkStrictly: true
      },
      //动态参数列表数据
      manyTableData: [],
      //静态属性列表数据
      onlyTableData: [],
      uploadUrl: 'http://127.0.0.1:8888/api/private/v1/upload',
      headerObj: {
        Authorization: window.sessionStorage.getItem('token')
      },
      preViewPath: '',
      previewVisible: false
    }
  },
  created() {
    this.getCateList()
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    }
  },
  methods: {
    async getCateList() {
      let result = await new this.Request(this.Urls.m().getCate).modeGet()
      if (result.meta.status !== 200) {
        return this.$message.error('获取商品分类数据失败')
      } else {
        this.cateList = result.data
        console.log('商品分类数据', this.cateList)
      }
    },
    //级联选择器变化触发
    handleChange() {
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = []
      }
    },
    beforeTabLeave(activeName, oldName) {
      if (oldName === '0' && this.addForm.goods_cat.length !== 3) {
        this.$message.error('请先选择参数')
        return false
      }
    },
    tabClicked() {
      //访问的动态参数面板
      if (this.activeIndex == 1) {
        this.geParaData('many')
      } else if (this.activeIndex == 2) {
        this.geParaData('only')
      }
    },
    async geParaData(para) {
      let result = await new this.Request(
        this.Urls.m().getCate + `/${this.cateId}/attributes`,
        { sel: para }
      ).modeGet()

      if (result.meta.status !== 200) {
        return this.$message.error(`获取商品${para}列表失败`)
      } else {
        if (para === 'many') {
          result.data.forEach(item => {
            item.attr_vals =
              item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
          })
          this.manyTableData = result.data
        } else if (para === 'only') {
          this.onlyTableData = result.data
        }
        console.log(`商品${para}列表`, result.data)
      }
    },
    //处理图片预览效果
    handlePreview(file) {
      console.log(file)
      this.preViewPath = file.response.data.url
      this.previewVisible = true
    },
    //移除图片的操作
    handleRemove(file) {
      console.log('移除的图片', file)
      const removeImg = file.response.data.tem_path
      this.addForm.pics.splice(
        this.addForm.pics.findIndex(item => {
          item.pic == removeImg
        }),
        1
      )
      console.log(this.addForm.pics)
    },
    //图片上传成功
    uploadSuccess(response) {
      console.log('图片上传', response)
      const picInfo = { pic: response.data.tmp_path }
      this.addForm.pics.push(picInfo)
      console.log(this.addForm.pics)
    },
    addGoods() {
      console.log('添加的商品', this.addForm);
      this.$refs.addFormRef.validate(async valid=>{
          if(!valid)
          {
              return this.$message.error("请填写必要的表单项");
          }else{
              //lodash cloneDeep(obj) 深度拷贝
             let tempForm=JSON.parse(JSON.stringify(this.addForm))
             tempForm.goods_cat=tempForm.goods_cat.join(',');
             
             //处理动态参数
             this.manyTableData.forEach(item=>{
                 let newInfo={
                     attr_id:item.attr_id,
                     attr_value:item.attr_vals.join(" ")
                 }
                 this.addForm.attrs.push(newInfo)
             })
             //处理静态属性
              this.onlyTableData.forEach(item=>{
                 let newInfo={
                     attr_id:item.attr_id,
                     attr_value:item.attr_vals
                 }
                 this.addForm.attrs.push(newInfo)
             })
             tempForm.attrs=this.addForm.attrs;
             console.log(tempForm,this.addForm)
             //发起请求 名称必须唯一
              let result = await new this.Request(this.Urls.m().getGoods,tempForm).modePost();
              if(result.meta.status!==201)
              {
                  return this.$message.error("添加商品失败")
              }else{
                  this.$message.success("添加商品成功");
                  this.$router.push('/goods')
              }
  


          }
      })
    }
  }
}
</script>
<style lang="less" scoped>
.el-checkbox {
  margin: 0 5px 0 0 !important;
}
.preView {
  width: 100%;
}
.btnAdd {
  margin-top: 15px;
}
</style>
